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Abstrak:The purpose of this research is to figure out the effect of cooperative strategy type STAD with LDS on the students' cognitive domain learning outcomes in Biology class, at the eighth grade of SMPN 3 Batang Anai. The research was an experimental research with Randomised Control Group Postest Only Design. The research instrument was a multiple choice test consisting of 55 test items. The cognitive test result of the experimental group was 70.46, whereas that of the control group was 60.07. T test result shows tcount (3.34) > ttable (1.68). Thus the hypothesis was accepted. It is concluded that the cooperative learning Type STAD with LDS gives an effect on the students' cognitive domain learning outcomes of Biology subject taught to the eighth grads students of SMPN 3 Batang Anai Padang Pariaman regency.

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Based on learning activities observation in human anatomy and fisiology major is low, like pay attention to the lecture, questioning, most of students talking each other, when they did the task the students more choose made in group. Activities learning of student is low because the students didn't have motivation in learning process, although the lecture has discution metode in learning process. The purpose of this research are to improve activities and student result of the learning. This research had used cooperative learning model with the type is STAD trough mind map in human anatomy and fisiology major. This research have been done to the students in STKIP. This research are action research that did in two phase. The phase are: Planning, doing, observation, and reflection. The data obtained through observation sheet documentation and test. Data that analysis from activities students and learning result of the students. The result of this research showed the improved of activities and learning result of the students. based on activities learning of student that get from cycluse 1 to the cycluse 2, showed that the increase of activities of the students like pre test( 98%) and post test (100%) with very good category in cycluse 1. In cycluse 2 become 5 activities like pre test (98%), looking to the lecture (93%), active to followed the discution (88%), making mind map (90%), followed post test (100%) with very good category. Result of learning in cycluse 1 just 52%, in cycluse 2 increased and become 83%. Based on the result that been concluded using cooperative learning model type of STAD through mind map in human anatomy and fisiology major can increase activities and result learning of the students. Kata kunci: Kooperatif STAD, Mind Map, Aktivitas, Hasil Belajar, Siklus PENDAHULUAN erdasarkan hasil observasi langsung pada mahasiswa semester VI Program Studi Pendidikan Biologi STKIP PGRI Sumatera Barat Padang pada mata kuliah Anatomi Fisiologi Manusia menunjukkan hasil yang belum memuaskan. Bila dilihat darisisi aktivitas mahasiswa masih belum menunjukkan antusiasme yang besar dalam pembelajaran Anatomi Fisiologi Manusia hal ini menyebabkan tidak teraktifkan potensi dan kemampuan maha-B